Heating device for lacquering.



W. W. VINCENT. HEATING DEVIGE FOR LAGQUERINQ. APPLICATION FILED MAB. 8, 1909.

928,291. Y Patented July 20, 1909.

, WILLIAM WRIGHT VINCENT, OF KLLNOSllxt,"\-\

chines;

ISCONSIN, ASSIGNOR TO THE SlMMONS MANU- FACTURING GQMPANY, -01 liiiNUSllA, WISCONSIN, A CORPORATLON Oh \YiSCONt lN.

HEATING DEVICE FDR LACQUEBING.

Application filed March 8, 1909. Serial No. 432,052.

devices for holding or Sllllllui ling bent tubes,

pipes, or the, like while they are being lacquered during; heating bya current of electricity sent directly through the part to be coated.

The appliance is especially adapted to holding the bent polished. or burnished tubes forming parts of brass bcdsteads, and is equipped with shouldered split adjustable electric terminals adapted to lit in and be 20 expanded within the ends of such tubes,

whereby to secure cll'oetivc electrical connections for the. etlicient application of a current of electricity for hearing purposes. 7

In the zuzcompanying drawings 1 have ill us- 5 trated one desirable embodiment ofthe in- ',vention, these drawings forming a part of the specification.

' In the drawings, Figure 1 is a side elevation of the lacquering appliance, certain 3 parts being broken away,the tube supported I oi the terminals being shown partially in \,se,t ion. Fig. EZ'is a top plan view of the construction set forth in Fig. 1, with the tube omitted. Fig. 3 is an elevation, partly in section, of one of the split shouldered conductive terminals; and Fig. lls a top plan view of thesamc.

The device includes a-fiat table 10 supported in any convenient manner, as by a plu rality of standards or legs 11. Near one end this tableor bench has rigidly fixed thereto "an uprighttubular terminal '12split lougitin dinally. at 13 for a considerable portion of its length. At its top end. the two parts of the tube orhollowj pipe are each supplied with a 'semicylindrical metallic shouldered contact 14: fastened to thetube 12 by suitable screws 15. It will therefore be apparent that as l the parts of the split tube 13 are forced apart by a device described hereinafter, the contacting portions 14: will be likewise expanded, it being understood and as'is clearly shown in the drawings, the smaller parts of i the contacts 14 are at the top, the contacts in 1' I 0 l 7 w v creasing insthe toward QlftGylMltllOllh which Specificatian of-Lettere Patent.

.Patented July 20, 1909.

construction enables them to readily acconr modate and lit. in the ends of tubes of different internal ealibcrs or diameters. Since in the construction of brass or similar metallic beds the tubes or pipes forming parts of the same are of standard dimensions, it is possible to so construct thexcontinfts 1 1 that. the pipe. or tube ends of the. bedstead will readily restv upon the. proper shoulders, the 7 parts oi the contacts immediately above such shoulders substantially filling the ends of the tubes.

inside of the tube lland fastened to one of the split parts I provide a block 16 having a threaded aperture 17 accon'imodating a screw .18 equipped at its outer end with a pivoted handle 1!), the inner end of said screw hearing or abutting against, the inner sin-lace ot the other hall or part of the. splittcrmiual. it should thereforehc apparent. that. by turning the screw 18b mczms ol' its handle. lillhe parts oi the terminal 12 and thc shouldered contacts ll mounted thereon ina i be readily expanded, the samc contracting automatically, owing to the resiliency and elasticity of the split tern'iinal, when the screw is turned in the opposite direction. The other terminal 20 is substantially like the terminal 12, being supplied with shouldered contacts 1 1-, and has a portion 21 passing downwardly through a slot 22 in the table, the part 21 below the table being SC1'G\\'-tl'll't)tl(l0l, as is shown in Fig. 1 and supplied with a tightening nut bearing against the bottom face of the table and adapted and capable of fastening this mow able adjustable terminal in the. desired posh lion. Below this nut is an apertured contact 2A- through the aperture of which passes a longitiulinally disposed conductive rod-25, the electrical connection between the same and the part. 24 being by a. set-screw 9x) curely fastening the rod to the. contact.

As Ihave indieatedin Fig. 1, the electric wires 27 and 28 are connected respectively to the terminal 12 and the conducting rod for the purpose of conveying an electrical current to these parts and to the bent tube supported on the shouldered contacts. Also at one end of this table 1 provide a. knifeswitch 30 for the control of such current, preferably by the opening and closing of one of the circuits of an electric transformer.

To those Skilled in this art it should be apparent that a bent tube, such, for example, as

drawings, e to me split "terminals, ended within its ends by fiei 5 13 "w connaccion heiwcen the parts, which enables me to seed en electrical currenis of considerable through the tube to heal; the same dc ng; she c plieetion of the lacquer.

In order #30 adapt the appliance for the accommo= ition 11d reception of e shorter or longer tube, it is mer y necessary to loosen he sets-crew and the nut 23, after which the movable lel'Flllfil 20 may be slid in tile to ilie -s use position, whereupon the operator, by Lightening the screw 23 and the sci-screw 26, is en alilcd to maintain this 'teriiiinnl in its new position and obtain tween the some and the rod 25.

in a general way i have indicated the ad vantages of construction of this kind, and here set forth Willi some degree of periloularicy desirable eii'ibodimcnt of the involition, but it to be understood thee i'ne.

latter is not necessarily limited and restrict ed to the precise construction shown, since many minor mechanical changes may be made without the benefits and ac} vantages of the ll'lVQHilOIl, and Without ile pcrlurc from its (were and suljs'mnce.

I claim: 1 l; The combination of a pair of coiiductivc split shouldered electrical fieiininels, e support therei -er, end means to expend the split portions of said terminals within the ends of a lube ie be lacquered, whereby an cleciiric current may be sent through the tube proper conductive connection beto heat the same during the application of clue lacquer, substanticllg as described.

2. The combineision of a pair of conduct-- ive split shouldered electrical terminals, 2 support therefor, one of said terminals be ing adjustable toward and from the other, means to lioldscicl adjustable terminal in position with relation to the companion terminal, and means to expend the split shouldered portions of said terminals Wit-hie the ends of c tube to Qoc lacquered, whereby an e'leciric current may be sent through the tube to heat the same during the application of the lacquer, substantially (.s described.

' 3. In 21 device of the charzrcter'described, the combination of :1 slotted table, an electrical terminal fixed to said cable, a companion electrical terminal adjustable toward and from the first terminal in said slot, means to hold said movable terminal inedjusted position, each of said terminals being conductive, split and having a shouldered })0Itl0l1,3 and a screw for each of said terminals neving threaded engagement Wit one of the split portions thereof and adcpled lo beer agemst the companion split portion, whereby such screws may expand the split shouldered parts of the terminals within ilxe ends of e tube. to be lacquered, so that an electric current may be sent through the tube to heat flie same during the application of the lacquer, substantially as described. 

